A composite cemented carbide roll comprising an inner layer made of an iron-based alloy, and an outer layer made of cemented carbide which is metallurgically bonded to an outer peripheral surface of the inner layer; the cemented carbide of the outer layer comprising 55-90 parts by mass of WC particles and 10-45 parts by mass of an Fe-based binder phase having a particular composition; a shaft member and a shaft end member being metallurgically bonded to at least one axial end of the inner layer; the inner layer being made of an iron-based alloy containing 2.0% or more in total by mass of at least one selected from the group consisting of Cr, Ni and Mo; and the shaft member and the shaft end member being made of an iron-based alloy containing 1.5% or less in total by mass of at least one selected from the group consisting of Cr, Ni and Mo.

A roll mounting system is provided that includes a roll assembly coupled to one or more rolls. The roll assembly is configured to position the one or more rolls using a tapered assembly for mounting or dismounting of the one or more rolls. Also, the roll mounting system includes a torque assembly coupled to the roll assembly. The torque assembly is configured to provide torque to the roll assembly for mounting or dismounting of the one more rolls.

A composite cemented carbide roll comprising an inner layer made of an iron-based alloy, and an outer layer made of cemented carbide which is metallurgically bonded to an outer peripheral surface of the inner layer; the cemented carbide of the outer layer comprising 55-90 parts by mass of WC particles and 10-45 parts by mass of an Fe-based binder phase having a particular composition; a shaft member and a shaft end member being metallurgically bonded to at least one axial end of the inner layer; the inner layer being made of an iron-based alloy containing 2.0% or more in total by mass of at least one selected from the group consisting of Cr, Ni and Mo; and the shaft member and the shaft end member being made of an iron-based alloy containing 1.5% or less in total by mass of at least one selected from the group consisting of Cr, Ni and Mo.

The invention relates to a method for producing a wire, having at least the following steps: (i) providing a wire precursor; (ii) pressing depressions on the wire precursor and optionally reshaping the wire precursor in the process, and (iii) annealing the wire precursor provided with depressions in order to form the wire; wherein the wire has a content of at least 95 wt. % of copper based on the total weight of the wire. The invention additionally relates to a wire which can be obtained according to the aforementioned method and to the use of a roller in order to produce the wire and/or in order to set the roughness at at least one location of the wire.

A roll mounting system is provided that includes a roll assembly coupled to one or more rolls. The roll assembly is configured to position the one or more rolls using a tapered assembly for mounting or dismounting of the one or more rolls. Also, the roll mounting system includes a torque assembly coupled to the roll assembly. The torque assembly is configured to provide torque to the roll assembly for mounting or dismounting of the one more rolls.

Apparatus for rolling a metal product comprising a plurality of rolling units (11), each provided with a respective rolling roll (12). Each rolling unit (11) comprises a support assembly (17) selectively rotatable around an axis of rotation (Z), and comprising a support rod (20) provided with an attachment portion (23) of a roll (12), and an actuation assembly (35) configured to selectively move the support rod (20) along the axis of rotation (Z) to allow the removal of the roll (12).

A composite casting special-shaped roll is compounded of two parts: an inner layer and an outer layer. The shape of body of the roll is curved surface, and a center hole is arranged for mount the shaft in that central axis of roll. The casting mold is designed into two parts, namely inner cast mold and outer cast mold through the curved surface design and mold design of the roll body. The composite casting special-shaped roll with the wear-proof working layer of the roll body that is resistant to impact, rapid cooling and heating resistance and the high-strength and high-toughness core is prepared by separate casting. It meets the requirements of the service conditions of rolls used by the steel pipe and cold forming sectional steel rolling mill and other equipment, improves the service life of the roll, saves the alloy material and reduces the manufacturing cost.

Rolling stand for oblong metal products comprising a plurality of rolling rolls (11) each installed on a respective rotation shaft (12). Between at least one rotation shaft (12) and the respective rolling roll (11), a coupling member (15) is provided and is configured to couple the rolling roll (11) and the rotation shaft (12) to each other. The coupling member (15) comprises a tubular body (16) interposed between the rolling roll (11) and the rotation shaft (12) and provided with a chamber (17) in which a deformer element (18) is inserted mobile.

A rolling mill roll according to the present invention includes: a shaft member which rotates around an axial line; a rolling ring which is fitted to an outer circumferential surface of the shaft member; a support portion which is provided on the outer circumferential surface of the shaft member; an interposed ring which is fitted to the outer circumferential surface of the shaft member and is provided on the other side of the rolling ring in the axial line direction; a pressing nut which is screwed onto the outer circumferential surface of the shaft member and is disposed to be adjacent to the other side of the interposed ring; a screw hole which is formed to penetrate the pressing nut in the axial line direction; and a screw shaft which is screwed into the screw hole and which is capable of pressing the interposed ring toward the one side in the axial line direction.

An assembly structure of a roller which includes a shaft, a ring unit, and a fixing unit. When the shaft and the ring unit are combined, the center of the bearing unit of the shaft and the center of the outer circumferential surface of the ring unit coincide, the center of the ring mounting unit of the shaft and the center of the inner circumferential surface of the ring unit coincide, the center of the bearing unit of the shaft and the center of the ring mounting unit are spaced apart, the diameter of the bearing unit is shorter than the diameter of the ring mounting unit, and a distance between the centers of the bearing unit of the shaft and the ring mounting unit is equal to or shorter than the distance between the diameter of the ring mounting unit and the diameter of the bearing unit.